Have you tried contacting Valmet?
FinnClassic 512s will work on a 412S but may need to be fitted.
EAW sells them
It's VALMET. We see them listed over $1000 but they rarely sell for that. $800 is more realistic.
The value of a Valmet 412's 12 gauge over 30-06 under made in Finland depends on its condition. This gun in mint condition is valued between 600.00 and 800.00 as of 2014.
If the owner's manual doesn't tell you, you need to contact the maker.
Valmet was created in 1951.
Valmet ended in 1999.
Valmet Automotive was created in 1968.
Valmet Automotive's population is 1,425.
Google Finn Classic shotguns by Marocchi are not directly related to Valmet, as they are distinct brands with different histories and offerings. Marocchi is an Italian manufacturer known for its craftsmanship in shotguns, while Valmet is a Finnish company primarily recognized for firearms and military equipment. If you're looking for information on Valmet shotguns specifically, it would be best to focus on Valmet's own products rather than Marocchi's offerings.
There is no such thing as "barrels per inch"
You will have to contact the CA Dept of Justice or visit their website to find out what the current laws are.
100-500 USD